Filter
Top Products
February 2003 2-31
1000-A2-GN22-00 2. CPX-1000 Voice Services Platform Description
This architecture enables two types of STS-1 module switchovers:
Automatic/forced switchover—the system detects a
problem such as loss of signal and performs a forced
switchover to the standby STS-1 module in the protection
group. When receive paths on an STS-1 module fails,
processing switches over to the standby STS-1 module.
Administrative switchover—the network administrator
initiates the switchover to the standby STS-1 module.
Each pair of redundant STS-1 cards has the following connections
at the STS-1 splitter assembly (Table 2–9):
Table 2–9. STS-1 Splitter Connections
Connection Function
TX1 Transmit cable to primary STS-1 Transition Card
To Net Transmit STS-1 cable to PSTN
TX2 Transmit cable to standby STS-1 Transition Card
RX1 Receive cable from primary STS-1 Transition Card
From Net Receive STS-1 cable to PSTN
RX2 Receive cable from standby STS-1 Transition Card